导航栏（iPhone）

Question

I have created email functionality view in which everything is working fine, but the color of a navigation bar item is not changing like other views. I have used below code for navigation color but 1 navigation bar button item is left with default color. How do I change it?

controller.navigationBar.barStyle = UIBarStyleBlack;

Answer 1

How about use this?

self.navigationController.navigationBar.tintColor = [UIColor blackColor];

of course on your viewDidLoad

Answer 2

Do you create the bar button item yourself? If so, you can change its background color by making sure it's a "custom view" type button item:

// Assuming you have some predetermined width w and height h
UIView *backgroundView = [[[UIView alloc] 
                           initWithFrame:CGRectMake(0.0, 0.0, w, h)] autorelease];
backgroundView.backgroundColor = [UIColor blackColor];
UIBarButtonItem *myItem = [[[UIBarButtonItem alloc]
                            initWithCustomView:backgroundView] autorelease];

Then you can change the background color at a future date by setting the backgroundColor property on the bar button item's customView :

myItem.customView.backgroundColor = [UIColor yellowColor];